20153426215 has 32 divisors (see below), whose sum is σ = 26769899520. Its totient is φ = 14468626944.

The previous prime is 20153426207. The next prime is 20153426239. The reversal of 20153426215 is 51262435102.

It is a cyclic number.

It is not a de Polignac number, because 20153426215 - 2³ = 20153426207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3934426 + ... + 3939544.

It is an arithmetic number, because the mean of its divisors is an integer number (836559360).

Almost surely, 2^20153426215 is an apocalyptic number.

20153426215 is a deficient number, since it is larger than the sum of its proper divisors (6616473305).

20153426215 is a wasteful number, since it uses less digits than its factorization.

20153426215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6811.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 20153426215 in words is "twenty billion, one hundred fifty-three million, four hundred twenty-six thousand, two hundred fifteen".